Question

These tiles represent the expression
–
9–7x+7.
-1
-1
-1
-1
-1
-1
-1
-1
-1
-x
-x
-x
-x
-x
-x
-x
1
1
1
1
1
1
1
Which expression is equivalent to
–
9–7x+7?

Answer 1

To simplify the expression –9 – 7x + 7, follow these steps:

1. Combine the constant terms –9 and +7:
\[
-9 + 7 = -2
\]

2. Rewrite the expression:
\[
-2 - 7x
\]

Thus, the expression \(-9 - 7x + 7\) simplifies to:
\[
-2 - 7x
\]

Therefore, an equivalent expression to \(-9 - 7x + 7\) is:
\[
-2 - 7x
\]